Gnomes, always explained to me as the woodkin version of dwarves, are nothing at all like that. <1 >
For one thing, they are between one and three apples tall, about the size of one half to one and a half windlings, if that helps give you an impression of size. The Grapeberry family was in the smaller part of that range, but no less attuned to the Earth and Nature elements for that.
Honestly, it surprised me that Thorngrim hadn't just whipped up his own healing potion for Hermance.
But, as it turns out, the Grapeberrys were in need of both spare healing potions, one to help with a sewing accident, and the other to knock a day off the healing of a bird's broken wing.